/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package org.put.netbeans.dcs_modeler;

import java.awt.Component;
import java.util.HashSet;
import java.util.Set;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.openide.WizardDescriptor;
import org.openide.WizardValidationException;
import org.openide.util.HelpCtx;
import org.openide.util.NbBundle;

/**
 * Panel just asking for basic info.
 */
public class ComputingWorkflowProjectWizardPanel implements WizardDescriptor.Panel,
                                                             WizardDescriptor.ValidatingPanel, WizardDescriptor.FinishablePanel
{

    private WizardDescriptor wizardDescriptor;
    private ComputingWorkflowProjectPanelVisual component;

    public ComputingWorkflowProjectWizardPanel()
    {
    }

    public Component getComponent()
    {
        if ( component == null )
        {
            component = new ComputingWorkflowProjectPanelVisual( this );
            component.setName( NbBundle.getMessage( ComputingWorkflowProjectWizardPanel.class, "LBL_CreateProjectStep" ) );
        }
        return component;
    }

    public HelpCtx getHelp()
    {
        return new HelpCtx( ComputingWorkflowProjectWizardPanel.class );
    }

    public boolean isValid()
    {
        getComponent();
        return component.valid( wizardDescriptor );
    }
    private final Set<ChangeListener> listeners = new HashSet<ChangeListener>( 1 ); // or can use ChangeSupport in NB 6.0

    public final void addChangeListener( ChangeListener l )
    {
        synchronized ( listeners )
        {
            listeners.add( l );
        }
    }

    public final void removeChangeListener( ChangeListener l )
    {
        synchronized ( listeners )
        {
            listeners.remove( l );
        }
    }

    protected final void fireChangeEvent()
    {
        Set<ChangeListener> ls;
        synchronized ( listeners )
        {
            ls = new HashSet<ChangeListener>( listeners );
        }
        ChangeEvent ev = new ChangeEvent( this );
        for ( ChangeListener l : ls )
        {
            l.stateChanged( ev );
        }
    }

    public void readSettings( Object settings )
    {
        wizardDescriptor = ( WizardDescriptor ) settings;
        component.read( wizardDescriptor );
    }

    public void storeSettings( Object settings )
    {
        WizardDescriptor d = ( WizardDescriptor ) settings;
        component.store( d );
    }

    public boolean isFinishPanel()
    {
        return true;
    }

    public void validate() throws WizardValidationException
    {
        getComponent();
        component.validate( wizardDescriptor );
    }
}
